Social media plug-in issues

Hi,

I’m having issues installing social media icons and links using different plug-ins through the widget function, but they just don’t seem to be appearing? I want them to be placed to the right of my logo on the front page, in-between the logo and the e-commerce icons, but I’m evidently doing something incorrectly.

Any pointers would be great.

Thanks.

http://sweet-plantain.co.uk/